Patents by Inventor ANDREAS MEISWINKLE

ANDREAS MEISWINKLE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Catalyst composition and process for oligomerization of ethylene
    Patent number: 9561500
    Abstract: A catalyst composition including: (a) a chromium compound; (b) a ligand of the general structure (A) R1R2P—N(R3)—P(R4)—NR5R6 or (B) R1R2P—N(R3)—P(XR7)R8 or R1R2P—N(R3)—P(XR7)2, with X=O or S, wherein R1, R2, R3, R4, R5, R6, R7 and R8 are independently C1-C10-alkyl, C6-C20-aryl, C3-C10-cycloalkyl, aralkyl, alkylaryl, or trialkylsilyl, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNP-unit is a member of the ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution; and (c) an activator or co-catalyst; and a process for tri- and/or tetramerization.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: February 7, 2017
    Assignees: SAUDI BASIC INDUSTRIES CORPORATION, LINDE AG
    Inventors: Anina Woehl, Andreas Meiswinkle, Heinz Boelt, Bernd H. Mueller, Wolfgang Mueller, Normen Peulecke, Uwe Rosenthal, Marco Harff, Mohammed H. Al-Hazmi, Abdullah Al-Qahtani
  • CATALYST COMPOSITION AND PROCESS FOR OLIGOMERIZATION OF ETHYLENE
    Publication number: 20160167033
    Abstract: A catalyst composition including: (a) a chromium compound; (b) a ligand of the general structure (A) R1R2P—N(R3)—P(R4)—NR5R6 or (B) R1R2P—N(R3)—P(XR7)R8 or R1R2P—N(R3)—P(XR7)2, with X=O or S, wherein R1, R2, R3, R4, R5, R6, R7 and R8 are independently C1-C10-alkyl, C6-C20-aryl, C3-C10-cycloalkyl, aralkyl, alkylaryl, or trialkylsilyl, or any cyclic derivatives of (A) and (B), wherein at least one of the P or N atoms of the PNPN-unit or PNP-unit is a member of the ring system, the ring system being formed from one or more constituent compounds of structures (A) or (B) by substitution; and (c) an activator or co-catalyst; and a process for tri- and/or tetramerization.
    Type: Application
    Filed: July 28, 2014
    Publication date: June 16, 2016
    Applicants: Saudi Basic Industries Corporation, Linde AG
    Inventors: ANINA WOEHL, ANDREAS MEISWINKLE, HEINZ BOELT, BERND H. MUELLER, WOLFGANG MUELLER, NORMEN PEULECKE, UWE ROSENTHAL, MARCO HARFF, MOHAMMED H. AL-HAZMI, ABDULLAH AL-QAHTANI